CN104054373A - Base station, communication system, communication method, and program recording medium - Google Patents
Base station, communication system, communication method, and program recording medium Download PDFInfo
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- CN104054373A CN104054373A CN201280067234.7A CN201280067234A CN104054373A CN 104054373 A CN104054373 A CN 104054373A CN 201280067234 A CN201280067234 A CN 201280067234A CN 104054373 A CN104054373 A CN 104054373A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004891 communication Methods 0.000 title claims description 49
- 238000003860 storage Methods 0.000 claims abstract description 17
- 238000005457 optimization Methods 0.000 claims description 28
- 210000004027 cell Anatomy 0.000 description 183
- 230000000295 complement effect Effects 0.000 description 101
- 238000010586 diagram Methods 0.000 description 30
- 230000006870 function Effects 0.000 description 9
- 238000005259 measurement Methods 0.000 description 7
- 230000004044 response Effects 0.000 description 6
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- 238000007726 management method Methods 0.000 description 5
- JZEPSDIWGBJOEH-UHFFFAOYSA-N 4-decylbicyclo[2.2.1]hept-2-ene Chemical compound C1CC2C=CC1(CCCCCCCCCC)C2 JZEPSDIWGBJOEH-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination of neighbour cell lists
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/04—Reselecting a cell layer in multi-layered cells
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/38—Reselection control by fixed network equipment
- H04W36/385—Reselection control by fixed network equipment of the core network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
Abstract
[Problem] There is the possibility that a mobile terminal attempting to perform a handover from a certain cell will execute the handover to a cell managed by a base station connected to a core network other than the core network to which this cell belongs. In a case such as this, the time required for the mobile terminal handover procedure is longer than a handover between cells belonging to the same core network. [Solution] A base station characterized by being provided with: a storage means for storing a list that associates a cell adjacent to the cell managed by the base station in question with an identifier for identifying the core network to which the adjacent cell belongs; a receiving means for receiving, from a base station adjacent to the base station, the list stored by the adjacent base station; and a controlling means for using the received list as a list of cells managed by the station in question.
Description
Technical field
The present invention relates to base station, comprise the communication system, communication means of base station and for the recording medium of logging program.
Background technology
In 3GPP (third generation partner program), the mobile network's of definition relay base station is connected with base station via Un link and forms community.The base station that comprises relay base station is known as alms giver eNodeB (DeNB).DeNB transmits data between core net and relay base station.Via S11 link, send transmission data.
Conventionally, mobile network mainly consists of macro base station.Because each in macro base station can cover wider region, so the quantity of the base station of Yao You telecom operators installation is less.Yet, for example, along with the increase of the quantity of the mobile terminal being frequently connected with the Internet (, smart phone etc.), there is installing the demand of a large amount of base stations.
Therefore, the consideration quantity that also installation has the femto base station of less overlay area or the telecom operators of relay base station except macro base station is installed is in increase.Therefore, the quantity of the community adjacent with specific cell increases, and consequently manual creation neighbor cell list becomes difficult.
The list of reference when neighbor cell list is the community of determining during in idle condition at the mobile terminal in being present in current area as the mobile destination of this mobile terminal.That is to say, the neighbor cell list relevant with specific cell is the cell list adjacent with specific cell.When at the mobile terminal in being present in its community, the Target cell of switching is determined in base station during in RRC (Radio Resource control) connection status also with reference to neighbor cell list.Conventionally, by base station, in community, notified neighbor cell list.
For example,, as having described specific base station from another base station reception information relevant with neighbor cell list for the non-patent literature 1 of the technology of neighbor cell list is set.
In addition mentioned as patent documentation 1 and the patent documentation 2 of describing the document of correlation technique.
Patent documentation 1 discloses maintenance server and has optimized terminal, and wherein, maintenance server is collected information and to optimizing terminal transmits information, then optimized the information of terminal based on receiving and optimize neighbor cell list from each base station.
Patent documentation 2 discloses and when new base station is installed, has optimized the relevant technology of neighbor cell list.The base station of first, newly installing sends notice to its adjacent base station.If receive each base station of notice, be equal to or less than threshold value with the distance of new base station of installing, this receives the base station back response of notice.New base station of installing receives response, then by listing adjacent base station apart from the order of the degree of approach, creates best neighbor cell list.
[reference listing]
[patent documentation]
[patent documentation 1]: Japanese patent application pending trial publication number No.2008-153963.
[patent documentation 2]: Japanese patent application pending trial publication number No.2011-004101.
[non-patent literature]
[non-patent literature 1]: 3GPP TS36.423 (V10.3.0), " Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2application protocol (X2AP) ", September2011.
Summary of the invention
[technical problem]
Consider now following situation: specific cell A is used the technology described in non-patent literature 1 from the B reception of neighboring cell list of another community.Community A is the community of being managed by the base station A that is connected to core net A.In this case, there is following possibility: the neighbor cell list of community B even comprises the community of being managed by the base station that is connected to the core net except core net A.
Therefore, may occur to attempt from the mobile terminal of community A switching to the community execution switching of being managed by the base station that is connected to the core net except core net A.In this case, the required time of handoff procedure becomes and is longer than the time for belonging to the switching between the community of identical core net.
The object of this invention is to provide base station, communication system, communication means and for the recording medium of logging program, it all can address the above problem.
[solution of problem]
Base station according to the present invention is characterised in that and comprises: storage device, for store the adjacent cell list in community of managing with described base station by following manner: by each neighbor cell with for identifying the identifier of the core net under described neighbor cell, be associated; Receiving system, for receiving from the base station adjacent with this base station the list that described adjacent base station is stored; And control device, for using received list as the relevant list in the community of managing with described this base station.
Communication system according to the present invention is characterised in that it is the communication system that comprises a plurality of base stations, wherein, described base station includes: storage device, for store the adjacent cell list in community of managing with described base station by following manner: by each neighbor cell with for identifying the identifier of the core net under described neighbor cell, be associated; Receiving system, for receiving from the base station adjacent with this base station the list that described adjacent base station is stored; And control device, for using received list as the relevant list in the community of managing with described this base station.
Communication means according to the present invention is characterised in that and comprises: receive and be stored in the cell list in adjacent base station, wherein, each community in adjacent community, the community managed to described adjacent base station is with relevant for identifying the identifier of the core net under described neighbor cell; And use the list receiving as the relevant list in the community of managing with this base station.
Program recorded medium according to the present invention is characterised in that storage is for making computer carry out the program of following process: the cell list that receiving neighbor bs is stored, wherein, each community in adjacent community, the community managed to described adjacent base station is with relevant for identifying the identifier of the core net under described neighbor cell; And use the list receiving as the relevant list in the community of managing with this base station.
[advantageous effects of invention]
Core net under each community comprising in the list of neighbor identification becomes possibility.
Accompanying drawing explanation
[Fig. 1] shows according to the schematic diagram of the configuration of the first exemplary embodiment.
[Fig. 2] shows according to the schematic diagram of the example of the list of the first exemplary embodiment.
[Fig. 3] shows according to the flow chart of the operation of the first exemplary embodiment.
[Fig. 4] shows according to the schematic diagram of the configuration of the system of the second exemplary embodiment.
[Fig. 5] shows according to the schematic diagram of the configuration of the base station of the second exemplary embodiment.
[Fig. 6] shows according to the schematic diagram of the example of the neighbor cell list of the second exemplary embodiment.
[Fig. 7] shows according to the flow chart of the operation of the second exemplary embodiment.
[Fig. 8] shows according to the flow chart of the operation of the second exemplary embodiment.
[Fig. 9] shows according to the sequence chart of the operation of the second exemplary embodiment.
[Figure 10] shows according to the sequence chart of the operation of the second exemplary embodiment.
[Figure 11] shows according to the schematic diagram of the configuration of the system of the 3rd exemplary embodiment.
[Figure 12] shows according to the schematic diagram of the example of the statistical information of the 3rd exemplary embodiment.
[Figure 13] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 14 A] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 14 B] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 15] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 16 A] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 16 B] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 17 A] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 17 B] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 18] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 19 A] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 19 B] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 20 A] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
[Figure 20 B] shows the schematic diagram of the example of the information sending to femto base station from base station in the second exemplary embodiment.
Embodiment
Hereinafter, exemplary embodiment of the present invention will be described with reference to the drawings.
[the first exemplary embodiment]
[configuration]
Fig. 1 shows according to the schematic diagram of the example of the configuration of the base station 1000 of the first exemplary embodiment of the present invention.According to Fig. 1, base station 1000 comprises storage device 1001, receiving system 1002 and control device 1003.1000 management communities, base station.
The storage device 1001 storage cell list (not shown) adjacent with base station 1000.Receiving system 1002 receives the list of being stored by adjacent base station from adjacent base station.Control device 1003 uses the list receiving to be used as the list relevant with the community of being managed by base station 1000.
Fig. 2 shows the schematic diagram of the example of the list 1100 of being stored by storage device 1001.List 1100 with by neighbor cell each with for identifying the mode that the identifier of the core net under neighbor cell is associated, store neighbor cell.In Fig. 2, show for example community #a and belong to the core net being identified by identifier " A ".
[operation]
Fig. 3 shows according to the flow chart of the operations flows of the first exemplary embodiment.
First, receiving system 1002 receives the list (S1001) of being stored by adjacent base station from adjacent base station.
Then, control device 1003 uses the list receiving as the relevant list in the community with being managed by base station 1000 (S1002).
[effect]
As described above, according to the base station 1000 of the first exemplary embodiment, use the list of being stored by adjacent base station as the relevant list in the community with being managed by base station 1000.This list for the storage of each community for identifying the identifier of the core net under this community.
Therefore, the core net under the community of each described in recognized list becomes possibility.
[the second exemplary embodiment]
[system configuration]
Fig. 4 shows according to the schematic diagram of the example of the configuration of the communication system of the second exemplary embodiment.According to Fig. 4, according to the communication system of the second exemplary embodiment, comprise MME (Mobility Management Entity) 310, S-GW (saving-gateway) 320,330He base station, base station 340.Communication system 300 also comprises: relay base station 350, mobile terminal 361, mobile terminal 362 and mobile terminal 363.
Base station 330 with 340 and femto base station 370 via network, be connected with S-GW320 with MME310.Hereinafter, when specifically not distinguishing these base stations, each base station in these base stations is referred to simply as base station.Similarly, when specifically not distinguishing mobile terminal 361,362 and 363, each in these mobile terminals is referred to simply as mobile terminal.
In the example shown in Fig. 4, there are three mobile terminals, they are connected with base station 330, relay base station 350 and femto base station 370 respectively.
Although the communication system shown in Fig. 4 can consist of the network of any type, by take, use network following description as example provides of LTE (Long Term Evolution).
First, MME310 has for transmitting control signal via S1-MME chain road direction base station and from the function of base station reception control signal.
S-GW320 has for sending user data via S1-U chain road direction base station and receiving the function of user data from base station.
Each BTS management community.Base station can comprise relay base station.In Fig. 4, base station 340 holds relay base station 350.The base station 340 that holds relay base station 350 is also called as DeNB, as mentioned above.Base station is connected by X2 link.
Here, femto base station 370 has the function identical with the function of base station 330, but compares with overlay area with the transmitting power of base station 330, and the transmitting power of femto base station and overlay area are all less.
Base station 340 is connected by Un link with relay base station 350.Base station 340 has the function that transmits data between relay base station 350 and MME310 and S-GW320.Data between relay base station 305 and MME310 and S-GW320 transmit carries out via S11 link.
Except above-mentioned functions, the equipment shown in Fig. 4 also has a large amount of functions, but here by the description of omitting about its detailed functions.
[configuration of base station]
Next, will the configuration of base station be described with Fig. 5.Fig. 5 shows the example of the configuration of femto base station 370.Here, the configuration of Fig. 5 not only can be applied to femto base station 370, but also can be applied to similarly other base stations, that is, and and base station 330, base station 340 and relay base station 350.
Hereinafter, unless otherwise stated, otherwise configuration and the operation of the second exemplary embodiment are described by take femto base station 370 as example.As above just as described in, configuration and the operation of the second exemplary embodiment are hereinafter described not limited only to femto base station 370, but can also be applied to base station 330, base station 340 and relay base station 350.Femto base station 370 can be managed a plurality of communities.Yet, for simplicity, supposition femto base station 370 is only managed to Yi Ge community and provides following description.
According to Fig. 5, femto base station 370 comprises: memory cell 371, receiving element 372, control unit 373, selected cell 374 and measuring unit 375.
The cell list that memory cell 371 storages are adjacent with the community of being managed by femto base station 370.Neighbor cell list shows will be as the list of the candidate's of the Target cell of switching from femto base station 370 community, as mentioned above.The neighbor cell list of being stored by memory cell 371 will be described in detail below.
Receiving element 372 receives the neighbor cell list that preserve the base station adjacent with the community of being managed by femto base station 370.
Control unit 373 is used the neighbor cell list of another base station being received by receiving element 372, as the relevant neighbor cell list in the community with being managed by femto base station 370.
The cell status of selected cell 374 based on corresponding adjacent base station, selects the base station from its reception of neighboring cell list.Selected cell 374 receives from the neighbor cell list of storage in memory cell 371 or from the cell status of the adjacent base station of measuring unit 375.
Measuring unit 375 is measured the information relevant with neighbor cell from aspects such as the switching frequency of neighbor cell, handover failure rate, and exports these information to selected cell 374 or memory cell 371.
Fig. 6 shows the schematic diagram of the example of the neighbor cell list 376 of being stored by memory cell 371.In Fig. 6, community #a, #b, #c, #d, #f and #e are listed as neighbor cell.In addition, in Fig. 6, the identifier (core net ID) of the core net under Shi relevant to each community community.For example, community #a belongs to the core net by identifier " A " sign.More precisely, the base station of core net ID " A " indication management relevant to community #a community #a belongs to the core net by identifier " A " sign.Can consider for example the following to be used as core network identifier: core net ID (hereinafter, being called CN-ID), MME ID, GUMMEI (overall unique MME ID), S-GW ID etc.Core network identifier can be to realize any identifier that identifies the core net being connected with base station.
Hereinafter, for simplified characterization, suppose that CN-ID is used as in neighbor cell list 376 for identifying the identifier of core net.Although only CN-ID is relevant to each community in Fig. 6, other information also can be relevant to each community.For example, for the switching frequency of each community, handover success rate, handover failure rate, quality of reception etc., can the relevant mode in Yi Yugai community be stored.
[operation]
Hereinafter, with reference to Fig. 7, take femto base station 370 and according to the second exemplary embodiment, provide the description of operation as example.Fig. 7 shows the flow chart of the operation of femto base station 370.
First, selected cell 374 selections will be from another base station (S101) of its reception of neighboring cell list.Here, selected cell 374 selection base stations 330 conducts will be from the base station of its reception of neighboring cell list.The selected cell 374 selected base stations 330 of request send neighbor cell list.
For the request of femto base station 370 330 transmission neighbor cell lists that propose to base station, can use specific messages.Alternatively, can use and not be specific messages but for example, in the message of the message described in non-patent literature 1 (, " X2SETUP REQUEST " or " eNB CONFIGURATION UPDATE ").Femto base station 370 can directly ask base station 330 to send neighbor cell lists, and can indirectly file a request via MME310 etc.
Next, receiving element 372 is from selected base station reception of neighboring cell list (S102).At S102, specific messages can be for sending neighbor cell list from selected base station 330 to femto base station 370.Alternatively, can use and not be specific messages but for example, in the message of the message described in non-patent literature 1 (, " X2SETUP RESPONSE " or " eNB CONFIGURATION UPDATE ").
The method of sending and receiving neighbor cell list between base station will be described in detail in S101 and S102 below.
When receiving element 372 receives neighbor cell list in S102, the operation that femto base station 370 is carried out as shown in S103.Control unit 373 is optimized the neighbor cell list (S103) receiving.Also will describe hereinafter this optimization in detail.
Finally, the neighbor cell list of control unit 373 uses through optimizing is as the relevant neighbor cell list in the community with being managed by femto base station 370 (S104).
Provided the above description of the operations flows shown in Fig. 7, wherein, S104 carries out after S103.Yet, use the neighbor cell list receive in S102 can be without optimize in the situation that as the neighbor cell list of this base station, that is, and without carrying out S103.In this case, can periodically or use specific timing after S104, to carry out the optimizing process that is depicted as S103.
The optimization that is depicted as S103 can be also from neighbor cell list 376, to eliminate simply the information relevant with femto base station 370 community with the community of base station that sends neighbor cell list 376.First, the receiving element 372 of supposing femto base station 370 330 receives the neighbor cell list relevant with community #b from base station.Now, the neighbor cell list receiving from base station 330, community #b is not described to the candidate of switching target small area.Therefore, first the control unit 373 of femto base station 370 adds community #b to received neighbor cell list, then from received neighbor cell list, eliminates the community of being managed by femto base station 370.Femto base station 370 is used the neighbor cell list creating thus as the relevant neighbor cell list 376 in the community with being managed by femto base station 370.
[optimization of the neighbor cell list of reception]
Hereinafter, with reference to the flow chart shown in Fig. 8, provide the description of optimization of the neighbor cell list of reception.
Here, content of operation is hereinafter described corresponding with the S103 of Fig. 7.Yet, in the situation that will periodically using specific timing optimization neighbor cell list 376, can complete until after the sequence of operation of S104, carry out operation hereinafter described.
For the ease of explaining, by the Target cell by hypothesis active procedure, be that " community A " provides following description.
First, control unit 373 checks the frequency that has switched to each neighbor cell community at one's disposal.Therefore, control unit 373 checks the content (S201) of the measurement report receiving from mobile terminal.
Here, measurement report relates to the report relevant with the communication quality of mobile terminal community around, and this report sends to base station from mobile terminal.More specifically, mobile terminal is measured the communication quality of neighbor cell of the community communicating at its current place, and with reference to determining that situation determines whether the communication quality of measurement meets predetermined communication quality.In this case, mobile terminal sends to base station and expresses the measurement report of determining result.After receiving measurement report, base station is determined and should from the community communicating at the current place of mobile terminal, to another community with better communication quality, be switched about mobile terminal according to the content of report.
Next, control unit 373 is determined the switching (S202) whether the community A that comprises in neighbor cell list 376 has occurred during predetermined amount of time.If there is the switching to community A during predetermined amount of time, the Ze Yu community relevant process of A finishes.
After this, if also optimizing process is not carried out in any community in neighbor cell list 376, control unit 373 can start repetitive operation sequence from S201 again.
If the definite proof in S202 does not occur to the switching of community A during predetermined amount of time, carry out the operation that is depicted as S203.Control unit 373 determines at community A during predetermined amount of time whether be included in the front two quality of reception Gao community in the measurement report being received by femto base station 370 (S203).Can use the index as the quality of reception such as RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality) etc. here.
If the definite proof community A in S203 is not included in front two quality of reception Gao community, control unit 373 is eliminated community A and is then finished the process (S205) relevant with community A from neighbor cell list 376.
If the definite proof community A in S203 is included in front two quality of reception Gao community, operation advances to the process that is depicted as S204.Control unit 373 determine the CN-ID corresponding with community A whether with the CN-ID identical (S204) of the core net being connected with femto base station 370.If the CN-ID corresponding with community A of the definite proof in S204 is identical with the CN-ID of the core net being connected with femto base station 370, control unit 373 is in terminal procedure without eliminate community A from neighbor cell list 376 in the situation that.
If the CN-ID corresponding from community A of the definite proof in S204 is different with the CN-ID of the core net being connected with femto base station 370, control unit 373 is eliminated community A (S205) from neighbor cell list 376.
Can adopt any other with reference to the reference as determine whether to eliminate community A from neighbor cell list 376 here.For example, according to this another reference, can consider not to be whether to be included in front two quality of reception Gao community but by community A, whether to be included in the quality of reception Gao community of optional quantity by community A to determine necessity or the non-essential of eliminating community A.Can also whether be equal to or higher than by the quality of reception of community A threshold value and determine necessity or the non-essential of eliminating.In this case, if process can advance to S204 so that the quality of reception of community A is equal to or higher than threshold value, and if the quality of reception of community A advances to S205 lower than threshold value.
In superincumbent description, control unit 373 determines that in S204 whether the CN-ID corresponding with community A be identical with the CN-ID of the core net being connected with femto base station 370.Yet, as previously mentioned, can determine according to MME ID, GUMMEI or S-GW ID rather than CN-ID.
In addition, in superincumbent description, if community A does not meet the condition of the conditioned disjunction S204 of S203, in S205, from neighbor cell list, eliminate community A, but can carry out any other operation here.For example, the definite result indication in S202 has occurred to the switching of community A during predetermined amount of time, can in neighbor cell list 376, carry out the process that preferentially leaves (rather than elimination) community A.More specifically, can consider for example to improve the mode of the priority of community A.When the CN-ID that definite result indication that also can be in S204 is corresponding with community A is identical with the CN-ID of the core net being connected with femto base station 370, carry out the process of just having described above.
[method of reception of neighboring cell list]
Next, the description of the method for the sending and receiving neighbor cell list of carrying out between base station will be given in.Operation is hereinafter described corresponding with S101 and the S102 of the flow chart shown in Fig. 7.
Fig. 9 shows the state of the sending and receiving neighbor cell list of carrying out between femto base station 370 and base station 330.
First, femto base station 370 sends sending the request (S111) of neighbor cell list to the base station 330 of selecting in step S101.Can to sending the request of neighbor cell list, use specific messages for this.Not to use specific messages, but can use the message described in non-patent literature 1, for example " X2SETUP REQUEST " and " eNB CONFIGURATION UPDATE ".
Next, receiving after sending the request of neighbor cell list, base station 330 sends neighbor cell list (S112) to femto base station 370.For this, to sending the request of neighbor cell list, can use specific messages.Not to use specific messages, but can use the message described in non-patent literature 1, for example " X2SETUP RESPONSE " and " eNB CONFIGURATION UPDATE ".
The example of 330 information that send to femto base station 370 from base station has been shown in Figure 13 and Figure 14 in step S112.
Figure 13 is the schematic diagram obtaining by " CN ID " being added to the information that comprises in " the X2SETUP RESPONSE " described in non-patent literature 1.This CN ID is the identifier for the core net under identifying cells, and such as above-mentioned CN-ID, MME ID, GUMMEI, S-GW ID etc. can be used as CN ID.
In Figure 13, can add CN ID with the form of list.When the base station of management community is while being connected to a plurality of core net, in Figure 13 with the formal description of the list in row " scope " for identifying the identifier of the corresponding core net of a plurality of core net.In Figure 13, the indication of the value of CN Id provides from 1 list to " max no of MMEs " (maximum number of MME).As substituting of the maximum number of MME, can use the maximum number (maxnoofCNIDs) of CN ID, maximum number (maxnoofSGWs) of S-GW etc. for CN Id.
In addition, can use " the eNB CONFIGURATION UPDATE " described in non-patent literature 1 as 330 information that send to femto base station 370 from base station.In this case, similar with Figure 13, add CN-ID, MME ID, GUMMEI, S-GW ID etc. to " eNB CONFIGURATION UPDATE ".
Figure 14 shows the schematic diagram of the details of " serviced cell information " in Figure 13.Here, although for convenience's sake Figure 14 is divided into two figure, that is, Figure 14 A and Figure 14 B, Figure 14 A shows the above-mentioned details of the information comprising in " serviced cell information " together with Figure 14 B.The combination of Figure 14 A by reference to as Figure 14 and Figure 14 B is provided to following description.In addition process similarly after a while by Figure 16, Figure 17, Figure 19 and Figure 20 of describing.Information shown in Figure 14 is the information obtaining by " cell type " being added to the information that comprises in " the serviced cell information " described in non-patent literature 1.This cell type is the big or small information of expressing the overlay area of community.If the network configuration of Fig. 3 of take is example,, the in the situation that of 330 He340 community, base station, the larger information in overlay area of expressing is set.On the other hand, the in the situation that of femto base station 370 and relay base station 350 community, the less information in overlay area of expressing is set.
In " the serviced cell information " shown in Figure 14, can use for identifying the identifier of core net, for example, CN-ID, MME ID, GUMMEI, S-GW ID etc.Figure 16 A and Figure 16 B show the schematic diagram of the example when CN ID is added to " serviced cell information ".As shown in Figure 17 A and Figure 17 B, cell type and CN ID can by together with add " serviced cell information " to.
In the example shown in Figure 16 and Figure 17, " existence " of CN ID is set to " M (compulsory) ", therefore needs in this case to comprise CN ID, but can carry out the setting without CN ID.Figure 19 A and Figure 19 B show example when CN ID is set to selectable rather than " M " in " serviced cell information " at Figure 16.Similarly, Figure 20 A and Figure 20 B show example when CN ID is set to optional rather than " M " in " serviced cell information " at Figure 17.
In Fig. 9, show femto base station 370 and base station 330 and directly to the other side, send neighbor cell list and from the example of the other side reception of neighboring cell list.Yet, as shown in Figure 10, can be via the sending and receiving of the execution neighbor cell lists such as MME310.Processing shown in processing stream shown in Figure 10 and Fig. 9 stream is almost identical, difference be MME310 at S122 relaying to sending the request of neighbor cell list and at S124 relaying neighbor cell list.
Up to the present, configuration when base station 330 sends neighbor cell list in response to request from femto base station 370 and the description of operation have been provided.Yet, can also adopt following configuration: base station 330 is not in the situation that receive the request from femto base station 370, initiatively to another base station notice neighbor cell list relevant with the community of being managed by base station 330.
In order to send neighbor cell list, can use the message described in specific messages or non-patent literature 1 (for example, " X2SETUP REQUEST ", " eNB CONFIGURATION UPDATE " etc.).
Figure 15 is by adding the schematic diagram that " the X2SETUP REQUEST " described in non-patent literature 1 obtains to for identifying one of identifier of core net (CN ID).Except CN ID, MME ID, GUMMEI, S-GW ID etc. also can be with acting on the identifier that identifies core net.In addition, when using " eNB CONFIGURATION UPDATE ", with similar in Figure 15, only need to add for identifying the identifier of core net, for example, CN ID.
Similar with Figure 19 and Figure 20, in " X2SETUP REQUEST " and " eNB CONFIGURATION UPDATE ", CN ID can be set to optional rather than compulsory.Figure 18 shows the schematic diagram of example when CN ID is set to optional rather than M in " X2SETUP REQUEST " at Figure 15.In addition, when using " eNB CONFIGURATION UPDATE ", mode that can be identical in the mode with Figure 18, CN ID is set to optionally.
[effect]
As mentioned above, according to the base station of the second exemplary embodiment, use the list of being preserved by adjacent base station as the relevant neighbor cell list in the community with being managed by this base station.Neighbor cell list storage is for the identifier (CN-ID) of each affiliated core net of identification list Zhong community.
Therefore, the core net under each in the community described in the list of neighbor identification becomes possibility.
Therefore, can in neighbor cell list, preferentially leave the community of the base station that is connected to identical core net.Therefore,, when mobile terminal is attempted switching with reference to neighbor cell list, can improve the possibility that mobile terminal is switched to the community of the base station that is connected to identical core net.
Conventionally, when during handoff procedure, core net changes, the required time of this handoff procedure becomes to be longer than in identical core net switches the required time.Therefore, according to the second exemplary embodiment, can reduce the required time of handoff procedure of mobile terminal, this is can preferentially stay in neighbor cell list because belong to the community of identical core net.
[the 3rd exemplary embodiment]
Next, the 3rd exemplary embodiment will be described.In the 3rd exemplary embodiment, the description of S101 (that is to say, select to receive the method for the base station of neighbor cell list from it) will be provided in the flow chart of Fig. 7.Can suitably realize in combination the 3rd exemplary embodiment with the first exemplary embodiment and the second exemplary embodiment.Here, the configuration of each base station is identical with the configuration of the second exemplary embodiment, therefore by the description of omitting it.
[operation]
Figure 11 shows the schematic diagram of the relation of base station 330, base station 340, relay base station 350, femto base station 370 and femto base station 380 community and mobile terminal 361 and 362.For simplicity, omitted the explanation to MME301 and S-GW302 here.Although each base station can comprise a plurality of communities, in the example shown in Figure 11, suppose that each base station only comprises Yi Ge community.
In the example shown in Figure 11, mobile terminal 361 and femto base station 370 and 380 are included in 330 community, base station.Similarly, mobile terminal 362, relay base station 350 and femto base station 380 are included in 340 community, base station.
As mentioned above, the overlay area of the overlay area of relay base station 350 and femto base station 370 and 380 is all less than the overlay area of base station 330 and 340.The quantity of the community of therefore, listing in the neighbor cell list of being preserved by these base stations must tail off.
In this respect, in the 3rd exemplary embodiment, there is the base station (for example, femto base station and relay base station) of less overlay area from thering is reception of neighboring cell, the base station list of larger overlay area, and by received neighbor cell list as its oneself neighbor cell list.
For example, from base station, 330 receptions have the neighbor cell list that comprises femto base station 370 community to femto base station 370.Similarly, from base station, 340 receptions have the neighbor cell list that comprises relay base station 350 community to relay base station 350.Being included in femto base station in 330 community, base station and 340 community, base station 380 selects any one in base stations 330 and 340 as receiving the base station of neighbor cell list from it, then from selected base station reception of neighboring cell list thus.
Here, femto base station 370 and 380 is for almost identical from the method for base station 330He340 reception of neighboring cell list and the method for the Fig. 9 described in the second exemplary embodiment and Figure 10 respectively, therefore by the description of omitting it.
Yet, when receiving when sending the base station of the request of neighbor cell list and send neighbor cell list to the base station that sends this request, for example, in the S112 of Fig. 9 and the S123 of Figure 10 and S124, need to comprise the information relevant with overlay area in transmission.
[operation of femto base station]
Hereinafter, will provide particularly femto base station 370 and receive the description of the operation of the relevant neighbor cell list in the community managed with it.Femto base station 380 is carried out identical operation, therefore by the description of omitting it.
First, by plot planning, based on inputs such as geography information, in distance, approach femto base station 370 community as the initial value of the neighbor cell list of femto base station 370.
On each community comprising in initial phase adjacent cell list, measuring unit 375 measurement switching frequencies and handover failure rate are as statistical information.The statistical information of being measured by measuring unit 375 is stored in form as shown in Figure 12.
In Figure 12, switching frequency and the handover failure rate of each neighbor cell are included as statistical information.In Figure 12, with the descending of switching frequency, listed community.Other information such as handover success rate etc. can be used as statistical information.
Next, with reference to the form of Figure 12, selected cell 374 is determined following such community, the community that this community comprises femto base station 370 preservations or overlapping with the community major part of femto base station 370 preservations.For example, femto base station 370 is selected the community that has the highest switching rate and have the handover failure rate less than threshold value.If suppose that the threshold value of handover failure rate is 10%, by the community of being selected by femto base station 370, be community #b.
The base station 330 of the community #b that selected cell 374 is selected via X2 link HuoS1Lian road direction administrative institute sends sending the request of neighbor cell list.
Base station 330 sends the neighbor cell list relevant with community #b to femto base station 370.Now, base station 330 also sends the big or small information of expressing its overlay area.This information can be the identifier of the type (for example, femto base station or relay base station) of the distinctive identifier in base station or expression base station.
Therefore, when receiving when sending the community of relative neighbor cell list and be the community of femto base station or relay base station, will be when sending neighbor cell list notice there is the community of smallest coverage area.
In this case, the femto base station 370 that has received neighbor cell list can be determined and not use the neighbor cell list receiving.This is because the quantity of the community adjacent with the community with less overlay area is very little, therefore when neighbor cell list being set at femto base station 370 places, may lose some neighbor cells that will list.
If femto base station 370 is not used the neighbor cell list relevant with femto base station 380 or relay base station 350 community, femto base station 370 is carried out following operation.The statistical information list Zhong community relevant according to the neighbor cell of the community with being managed by femto base station 370, femto base station 370 sequentially sends the request to neighbor cell list with the descending of priority.Femto base station 370 repeats this operation, until it is from receiving neighbor cell list except femto base station 380 and the relay base station 350 any community the two.
[operation of relay base station]
Next, will the operation of relay base station 350 reception of neighboring cell lists be described particularly.
Relay base station 350 selects to be connected to the DeNB of relay base station 350.In the example shown in Fig. 4 and Figure 11, select base station 340.
Relay base station 350 sends neighbor cell list via Un link request base station 340.Wireless base station 340 sends neighbor cell list to relay base station 350.
Having take hereinbefore femto base station and relay base station has described the 3rd exemplary embodiment as example.Yet, the configuration of the 3rd exemplary embodiment and operation also can be applied to neither femto base station neither relay base station base station, for example, base station 330 and 340.For example, in base station, 330 places can the 340 reception of neighboring cell lists from base station, and by received neighbor cell list as the relevant neighbor cell list in community of managing with this base station.Similarly, according to the configuration of the 3rd exemplary embodiment and operation, also can be applied to the overlay area femto base station less than the overlay area of femto base station and relay base station.
[effect]
As mentioned above, similar with the second exemplary embodiment, according to the base station of the 3rd exemplary embodiment, use the list of being preserved by adjacent base station as the relevant neighbor cell list in the community of managing with this base station.Neighbor cell list storage is for identifying the identifier (CN-ID) of the affiliated core net in each community.
Therefore, the core net under each community described in the list of neighbor identification becomes possibility.
Therefore, can preferentially in neighbor cell list, leave the community of the base station that is connected to identical core net.Therefore,, when mobile terminal is attempted carrying out switching with reference to neighbor cell list, can improve the possibility that mobile terminal is switched to the community of the base station that is connected to identical core net.
Conventionally, when during handoff procedure, core net changes, the required time of this handoff procedure becomes to be longer than in identical core net switches the required time.Therefore, according to the 3rd exemplary embodiment, can reduce the required time of handoff procedure of mobile terminal, this is can preferentially stay in neighbor cell list because belong to the community of identical core net.
Reference example embodiment has described the present invention, but the invention is not restricted to above-mentioned exemplary embodiment.It will be appreciated by persons skilled in the art that and can to configuration of the present invention and details, make various changes and modifications within the scope of the invention.
In addition, about base station, according to the femto base station of above-mentioned exemplary embodiment and relay base station, the function that they have can be realized by hardware, and also can be realized by computer and the software of carrying out on computers.
For example, in the mode that will be recorded in recording medium (, disk and semiconductor memory), provide program, and when computer being started etc., program is read in computer.Therefore, by controlling the operation of computer, make computer in each exemplary embodiment, be used as base station, femto base station and relay base station, thereby make computer carry out said process.
The application is based on following Japanese patent application and require following priority of applying for: the Japanese patent application No.2012-006324 submitting on January 16th, 2012, its disclosure mode by reference is intactly incorporated to herein.
Part or all of above-mentioned exemplary embodiment can be described to but be not limited to following complementary annotations.
(complementary annotations 1)
A base station, comprising:
Storage device, for store the adjacent cell list in community of managing with described base station by following manner: by each neighbor cell with for identifying the identifier of the core net under described neighbor cell, be associated;
Receiving system, for receiving from the base station adjacent with this base station the list that described adjacent base station is stored; And
Control device, for using received list as the relevant list in the community of managing with described this base station.
(complementary annotations 2)
According to the base station described in complementary annotations 1, wherein,
The list that the list that described control device optimization receives and use are optimized is as the relevant list in the community of managing with described this base station.
(complementary annotations 3)
According to the base station described in complementary annotations 1 or 2, wherein,
Described control device is carried out list optimization by following manner: from described list, eliminate the community of also not switching to it during predetermined amount of time in the community comprising in described list.
(complementary annotations 4)
According to the base station described in any one in complementary annotations 1 to 3, wherein,
The quality of reception of the community of described control device based on comprising in described list during predetermined amount of time is eliminated the community comprising in described list from described list.
(complementary annotations 5)
According to the base station described in complementary annotations 4, wherein,
In the community that described control device comprises from described list, eliminate the position of its quality of reception in rank and be equal to or less than the community of ad-hoc location.
(complementary annotations 6)
According to the base station described in any one in complementary annotations 1 to 5, wherein,
Described control device is further eliminated the community that belongs to the core net that the core net of the community of managing from described this base station is different in the community comprising in described list from described list with reference to described identifier.
(complementary annotations 7)
According to the base station described in any one in complementary annotations 1 to 6, wherein,
Described control device is further carried out described optimization with reference to described identifier preferentially to leave the mode of the community that belongs to the core net that the core net of the community of being managed with described this base station is identical in the community comprising in described list in described list.
(complementary annotations 8)
According to the base station described in any one in complementary annotations 1 to 7, wherein,
Described control device is further carried out described optimization with reference to described identifier to improve the priority degree of community in described list that belongs to the core net that the core net of the community of being managed with described this base station is identical in the community being comprised in described list.
(complementary annotations 9)
According to the base station described in any one in complementary annotations 1 to 8, wherein,
List optimization is carried out in the community that the community that described control device is managed by the described base station that sends received list by elimination and described this base station are managed.
(complementary annotations 10)
According to the base station described in any one in complementary annotations 1 to 9, described base station also comprises:
Choice device, will receive the base station of described list for selecting from it.
(complementary annotations 11)
According to the base station described in complementary annotations 10, wherein,
The switching frequency of the community that described choice device is managed based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 12)
According to the base station described in complementary annotations 10 or 11, wherein,
The handover success rate of the community that described choice device is managed based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 13)
According to the base station described in any one in complementary annotations 10 to 12, wherein,
The handover failure rate of the community that described choice device is managed based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 14)
A communication system, comprises a plurality of base stations, and wherein, described base station includes:
Storage device, for store the adjacent cell list in community of managing with described base station by following manner: by each neighbor cell with for identifying the identifier of the core net under described neighbor cell, be associated;
Receiving system, for receiving from the base station adjacent with this base station the list that described adjacent base station is stored; And
Control device, for using received list as the relevant list in the community of managing with described this base station.
(complementary annotations 15)
According to the communication system described in complementary annotations 14, wherein,
The list that the list that described control device optimization receives and use are optimized is as the relevant list in the community of managing with described this base station.
(complementary annotations 16)
According to the communication system described in complementary annotations 14 or 15, wherein,
Described control device is carried out list optimization by following manner: from described list, eliminate the community of also not switching to it during predetermined amount of time in the community comprising in described list.
(complementary annotations 17)
According to the communication system described in any one in complementary annotations 14 to 17, wherein,
The quality of reception of the community of described control device based on comprising in described list during predetermined amount of time is eliminated the community comprising in described list from described list.
(complementary annotations 18)
According to the communication system described in complementary annotations 17, wherein,
In the community that described control device comprises from described list, eliminate the position of its quality of reception in rank and be equal to or less than the community of ad-hoc location.
(complementary annotations 19)
According to the communication system described in any one in complementary annotations 14 to 18, wherein,
Described control device is further eliminated the community that belongs to the core net that the core net of the community of managing from described this base station is different in the community comprising in described list from described list with reference to described identifier.
(complementary annotations 20)
According to the communication system described in any one in complementary annotations 14 to 19, wherein,
Described control device is further carried out described optimization with reference to described identifier preferentially to leave the mode of the community that belongs to the core net that the core net of the community of being managed with described this base station is identical in the community comprising in described list in described list.
(complementary annotations 21)
According to the communication system described in any one in complementary annotations 14 to 20, wherein,
Described control device is further carried out described optimization with reference to described identifier to improve the priority degree of community in described list that belongs to the core net that the core net of the community of being managed with described this base station is identical in the community being comprised in described list.
(complementary annotations 22)
According to the communication system described in any one in complementary annotations 14 to 21, wherein,
List optimization is carried out in the community that the community that described control device is managed by the described base station that sends received list by elimination and described this base station are managed.
(complementary annotations 23)
According to the communication system described in any one in complementary annotations 14 to 22, wherein,
Described base station also comprises: choice device, will receive the base station of described list for selecting from it.
(complementary annotations 24)
According to the communication system described in complementary annotations 23, wherein,
The switching frequency of the community that described choice device is managed based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 25)
According to the communication system described in complementary annotations 23 or 24, wherein,
The handover success rate of the community that described choice device is managed based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 26)
According to the communication system described in any one in complementary annotations 23 to 25, wherein,
The handover failure rate of the community that described choice device is managed based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 27)
A communication means, comprising:
The cell list that receiving neighbor bs is stored, wherein, each community in adjacent community, the community managed to described adjacent base station is with relevant for identifying the identifier of the core net under described neighbor cell; And
Use the list receiving as the relevant list in the community of managing with described this base station.
(complementary annotations 28)
Communication means according to described in complementary annotations 27, comprising:
The list that the list that optimization receives and use are optimized is as the relevant list in the community of managing with described this base station.
(complementary annotations 29)
Communication means according to described in complementary annotations 27 or 28, comprising:
By eliminate the community of also not switching to it in the community comprising in described list during predetermined amount of time from described list, carry out list optimization.
(complementary annotations 30)
Communication means according to described in any one in complementary annotations 27 to 29, comprising:
The quality of reception of the community based on comprising in described list during predetermined amount of time is eliminated the community comprising in described list from described list.
(complementary annotations 31)
Communication means according to described in complementary annotations 30, comprising:
In the community comprising, eliminate the position of its quality of reception in rank and be equal to or less than the community of ad-hoc location from described list.
(complementary annotations 32)
Communication means according to described in any one in complementary annotations 27 to 31, comprising:
With reference to described identifier, from described list, eliminate the community that belongs to the core net that the core net of the community of managing from described this base station is different in the community comprising in described list.
(complementary annotations 33)
Communication means according to described in any one in complementary annotations 27 to 32, comprising:
With reference to described identifier, preferentially to leave the mode of the community that belongs to the core net that the core net of the community of being managed with described this base station is identical in the community comprising in described list in described list, carry out described optimization.
(complementary annotations 34)
According to the communication means described in any one in complementary annotations 27 to 33, wherein,
With reference to described identifier, to improve the priority degree of community in described list that belongs to the core net that the core net of the community of being managed with described this base station is identical in the community being comprised in described list, carry out described optimization.
(complementary annotations 35)
Communication means according to described in any one in complementary annotations 27 to 34, comprising:
List optimization is carried out in the community that the community of being managed by the described base station that sends received list by elimination and described this base station are managed.
(complementary annotations 36)
Communication means according to described in any one in complementary annotations 27 to 35, comprising:
Selection will receive the base station of described list from it.
(complementary annotations 37)
Communication means according to described in complementary annotations 36, comprising:
The switching frequency of the community of managing based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 38)
Communication means according to described in complementary annotations 36 or 37, comprising:
The handover success rate of the community of managing based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 39)
Communication means according to described in any one in complementary annotations 36 to 38, comprising:
The handover failure rate of the community of managing based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 40)
A program, for making computer carry out following process:
The cell list that receiving neighbor bs is stored, wherein, each community in adjacent community, the community managed to described adjacent base station is with relevant for identifying the identifier of the core net under described neighbor cell; And
Use the list receiving as the relevant list in the community of managing with described this base station.
(complementary annotations 41)
Program according to described in complementary annotations 40, comprises following process:
The list that the list that optimization receives and use are optimized is as the relevant list in the community of managing with described this base station.
(complementary annotations 42)
According to the program described in complementary annotations 40 or 41, comprise following process:
By eliminate the community of also not switching to it in the community comprising in described list during predetermined amount of time from described list, carry out list optimization.
(complementary annotations 43)
Communication means according to described in any one in complementary annotations 40 to 42, comprises following process:
The quality of reception of the community based on comprising in described list during predetermined amount of time is eliminated the community comprising in described list from described list.
(complementary annotations 44)
Program according to described in complementary annotations 43, comprises following process:
In the community comprising, eliminate the position of its quality of reception in rank and be equal to or less than the community of ad-hoc location from described list.
(complementary annotations 45)
Program according to described in any one in complementary annotations 40 to 44, comprises following process:
With reference to described identifier, from described list, eliminate the community that belongs to the core net that the core net of the community of managing from described this base station is different in the community comprising in described list.
(complementary annotations 46)
Program according to described in any one in complementary annotations 40 to 45, comprises following process:
With reference to described identifier, preferentially to leave the mode of the community that belongs to the core net that the core net of the community of being managed with described this base station is identical in the community comprising in described list in described list, carry out described optimization.
(complementary annotations 47)
Program according to described in any one in complementary annotations 40 to 46, comprises following process:
With reference to described identifier, to improve the priority degree of community in described list that belongs to the core net that the core net of the community of being managed with described this base station is identical in the community being comprised in described list, carry out described optimization.
(complementary annotations 48)
Program according to described in any one in complementary annotations 40 to 47, comprises following process:
List optimization is carried out in the community that the community of being managed by the described base station that sends received list by elimination and described this base station are managed.
(complementary annotations 49)
Program according to described in any one in complementary annotations 40 to 48, comprises following process:
Selection will receive the base station of described list from it.
(complementary annotations 50)
Program according to described in complementary annotations 49, comprises following process:
The switching frequency of the community of managing based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 51)
According to the program described in complementary annotations 49 or 50, comprise following process:
The handover success rate of the community of managing based on described adjacent base station is selected from it, to receive the base station of described list.
(complementary annotations 52)
Program according to described in any one in complementary annotations 49 to 51, comprises following process:
The handover failure rate of the community of managing based on described adjacent base station is selected from it, to receive the base station of described list.
[reference numerals list]
301 MME
302 S-GW
303,304,1000 base stations
305 relay base station
306 mobile terminals
307,308 femto base stations
1001 lists
1002 receiving systems
1003 control device
3071 memory cell
3072 receiving elements
3073 control units
3074 selected cells
3075 measuring units
Claims (10)
1. a base station, comprising:
Storage device, for store the adjacent cell list in community of managing with described base station by following manner: by each neighbor cell with for identifying the identifier of the core net under described neighbor cell, be associated;
Receiving system, for receiving from the base station adjacent with this base station the list that described adjacent base station is stored; And
Control device, for using received list as the relevant list in the community of managing with described this base station.
2. base station according to claim 1, wherein,
The list that described control device optimization receives, and use the list of optimizing as the relevant list in the community of managing with described this base station.
3. base station according to claim 1 and 2, wherein,
Described control device is carried out list optimization by following manner: from described list, eliminate in the community comprising in described list and also to it, do not carry out the community of switching during predetermined amount of time.
4. according to the base station described in any one in claims 1 to 3, wherein,
The quality of reception of the community of described control device based on comprising in described list during predetermined amount of time is eliminated the community comprising in described list from described list.
5. base station according to claim 4, wherein,
In the community that described control device comprises from described list, eliminate the position of its quality of reception in rank and be equal to or less than the community of ad-hoc location.
6. according to the base station described in any one in claim 1 to 5, wherein,
Described control device is further eliminated the community that belongs to the core net that the core net of the community of managing from described this base station is different in the community comprising in described list from described list with reference to described identifier.
7. according to the base station described in any one in claim 1 to 6, wherein,
Described control device is further carried out described optimization in the following manner with reference to described identifier: in described list, preferentially leave the community that belongs to the core net that the core net of the community of managing with described this base station is identical in the community comprising in described list.
8. a communication system, comprises a plurality of base stations, wherein,
Described base station includes:
Storage device, for store the adjacent cell list in community of managing with described base station by following manner: by each neighbor cell with for identifying the identifier of the core net under described neighbor cell, be associated;
Receiving system, for receiving from the base station adjacent with this base station the list that described adjacent base station is stored; And
Control device, for using received list as the relevant list in the community of managing with described this base station.
9. a communication means, comprising:
The cell list that receiving neighbor bs is stored, wherein, each community in adjacent community, the community managed with described adjacent base station with for identifying the identifier of the core net under described neighbor cell, be associated; And
Use the list receiving as the relevant list in the community of managing with this base station.
10. a recording medium, storage is for making computer carry out the program of following process:
The cell list that receiving neighbor bs is stored, wherein, adjacent each community, the community managed with described adjacent base station with for identifying the identifier of the core net under described neighbor cell, be associated; And
Use the list receiving as the relevant list in the community of managing with this base station.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012006324 | 2012-01-16 | ||
| JP2012-006324 | 2012-01-16 | ||
| PCT/JP2012/008209 WO2013108346A1 (en) | 2012-01-16 | 2012-12-21 | Base station, communication system, communication method, and program recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104054373A true CN104054373A (en) | 2014-09-17 |
Family
ID=48798798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280067234.7A Pending CN104054373A (en) | 2012-01-16 | 2012-12-21 | Base station, communication system, communication method, and program recording medium |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20150117403A1 (en) |
| EP (1) | EP2806690B1 (en) |
| JP (1) | JP5874937B2 (en) |
| KR (1) | KR101624820B1 (en) |
| CN (1) | CN104054373A (en) |
| IN (1) | IN2014DN05867A (en) |
| RU (1) | RU2570350C1 (en) |
| WO (1) | WO2013108346A1 (en) |
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| CN111510975A (en) * | 2017-11-13 | 2020-08-07 | Oppo广东移动通信有限公司 | Method for determining core network type in switching process, terminal equipment, access network equipment and core network equipment |
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| JP6281192B2 (en) * | 2013-05-24 | 2018-02-21 | 富士通株式会社 | Base station apparatus, handover control method, and radio communication system |
| US20170026879A1 (en) * | 2014-03-18 | 2017-01-26 | Nec Corporation | Base station and base-station control method |
| US9319872B1 (en) * | 2014-05-13 | 2016-04-19 | Sprint Spectrum L.P. | Method for allocating coverage area identifiers among nearby base stations |
| JP2016158192A (en) * | 2015-02-26 | 2016-09-01 | 富士通株式会社 | Terminal, wireless communication system, and message transmission method |
| CN106535135A (en) * | 2015-09-10 | 2017-03-22 | 大唐移动通信设备有限公司 | Cluster service realizing method and device |
| EP3643112A1 (en) | 2017-06-23 | 2020-04-29 | Blackned GmbH | Network access entity for dynamically reconfigurable networks |
| KR102398494B1 (en) * | 2017-11-21 | 2022-05-17 | 한국전자통신연구원 | Neighbor cell list mangement method of base station and neighbor cell list mangement apparatus |
| CN113727402A (en) * | 2021-09-28 | 2021-11-30 | 维沃移动通信有限公司 | Abnormal cell processing method and device |
| EP4167635A1 (en) * | 2021-10-15 | 2023-04-19 | Volkswagen Ag | Method for user equipment for improving a handover list, method for a cell, apparatus, vehicle and computer program |
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- 2012-12-21 US US14/370,308 patent/US20150117403A1/en not_active Abandoned
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- 2012-12-21 WO PCT/JP2012/008209 patent/WO2013108346A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DN05867A (en) | 2015-06-26 |
| RU2570350C1 (en) | 2015-12-10 |
| EP2806690B1 (en) | 2019-03-27 |
| US20150117403A1 (en) | 2015-04-30 |
| JPWO2013108346A1 (en) | 2015-05-11 |
| EP2806690A1 (en) | 2014-11-26 |
| KR101624820B1 (en) | 2016-05-26 |
| WO2013108346A1 (en) | 2013-07-25 |
| JP5874937B2 (en) | 2016-03-02 |
| EP2806690A4 (en) | 2015-12-02 |
| KR20140103330A (en) | 2014-08-26 |
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